Soldato
Did you go on your own with two random blokes, in a car, 40 minutes away?He is a 19 year old kid and more than likely a really stupid one. I went to many random houses for "after parties" when I was his age. Although doing this abroad does seem a bit odd. Saying that he hacked at someone with a machete so I guess he has no fear.
I mean we've all been young and stupid (for example I once woke up with my lower half in a river) but this is so far past stupidity you have to consider other motives.